If you thought Harry Potter ended with the Deathly Hollows, today is your lucky day. Author J.K. Rowling announces two new books, and finally launches the highly anticipated Pottermore site! J.K. Rowling new Potter venture is a Harry Potter Encyclopedia, which will contain pretty much everything you need to know about Harry's world. The billionaire author is also set to enchant us with more Hogwartz goodness as her Pottermore site finally opened to the public. Here, fans can get behind-the-scenes information, bonus content and play interactive games.